Systems and methods of utilizing multiple forecast models in forecasting customer demands for products at retail facilities

1. A system to forecast product demand at retail facilities, comprising: a product forecasting system comprising a control circuit and memory storing computer instructions that when executed cause the control circuit to: apply, for each of hundreds of different products, each of a plurality of different models to forecast demand of a first product over a first historic period of time to generate a plurality of different historic forecasted demands of the first product at a first shopping facility, wherein: at least a first model uses selected one or more variables, of tens of different variables maintained in a variable database of status data corresponding to each of the tens of different variables, that are predicted to have an uncharacteristic effect on predicted demand of the first product at the first shopping facility in generating a corresponding first historic forecasted demand of the different historic forecasted demands, and at least a second model does not use the variables maintained in the variable database in generating a corresponding second historic forecasted demand of the different historic forecasted demands; select one of the plurality of different models and apply the selected one of the models in generating a forecasted future demand of the first product at the first shopping facility over a fixed future period of time, wherein the selection of the one of the plurality of different models is based on a difference between each of the generated historic forecasted demands and actual sales of the first product over the first historic period of time; identify at least a first action to modify inventory of the first product at the first shopping facility based on the forecasted future demand, comprising identifying a quantity of the product to be transferred to the first shopping facility based on the forecasted future demand and relative to an on-hand quantity of the product at the first shopping facility, and identify one or more other shopping facilities from which the quantity of the first product is to be transferred; and carry out at least the first action initiating a transfer, from the one or more other shopping facilities, of the quantity of the first product to the first shopping facility and reallocating and redistributing the quantity of the first product to the first shopping facility consistent with and satisfying the forecasted future demand of the first product at the first shopping facility.

2. The system of claim 1 , wherein the control circuit is further configured to determine an error factor for each of the different historic forecasted demands relative to the actual sales of the first product, where a first error factor corresponding to the selected model has a lowest error factor.

3. The system of claim 1 , wherein the control circuit is further configured to: determine an error factor for each of the different historic forecasted demands relative to the actual sales of the first product; and confirm, prior to selecting the one of the plurality of different models, that the first error factor corresponding to the selected one of the plurality of different models is less than an error factor of an additional historic forecasted demand generated by an alternative inventory replenishment application.

4. The system of claim 1 , wherein the control circuit is further configured to: determine an error factor for each of the different historic forecasted demands relative to the actual sales of the first product over the first historic period of time; apply each of the plurality of different models to forecast a secondary demand of the first product over a second historic period of time that corresponds in duration to the fixed future period of time to generate a plurality of additional different historic forecasted demands of the first product at the first shopping facility; determine an additional error factor for each of the additional different historic forecasted demands relative to additional actual sales of the first product over the second historic period of time; and determine, for at least the selected one of the plurality of different models, a confidence factor based on the corresponding error factor and additional error factor wherein the selection of the one of the plurality of different models comprises confirming the confidence factor corresponding to the selected one of the plurality models has a predefined relationship with a confidence factor threshold.

5. The system of claim 4 , wherein the control circuit is further configured to adjust the actual sales as a function of on-hand inventory of the first product at the first shopping facility over at least a portion of the first historic period, wherein the determining the error factor for each of the different historic forecasted demands determines the error factor relative to the adjusted actual sales of the first product.

6. The system of claim 5 , wherein the control circuit in selecting the one or more variables selects the one or more variables as a function of a residual between historical sales data of the first product relative to a previously forecasted demand forecasted without consideration of the change in status of the one or more variables.

7. The system of claim 1 , wherein the control circuit further applies a first set of two or more models comprising the first model, wherein each of the two or more models of the first set of models uses the selected one or more variables; applies a second set of two or more models comprising the second model, wherein each of the two or more models of the second set of models do not use the one or more variables; and compares forecasted future demand from each model of the first set of models to forecasted future demand determined from each model of the second set of models in confirming an uncharacteristic change in demand.

8. The system of claim 1 , wherein the control circuit is further configured to, in parallel and independent of predicting whether there is an uncharacteristic demand of the first product at the first shopping facility: receive, for each of the hundreds of products at the first shopping facility and from the variable database, a change in status data corresponding to selected one or more variables, of the tens of different variables, that are predicted to have effects on predicted demand of corresponding ones of the hundreds of products at the first shopping facility; forecast, independent of the other of the hundreds of products, a forecasted future demand for each of the hundreds of product at the first shopping facility by: applying one or more of a set of models using the selected one or more variables to historic data relative to the product being forecasted, applying one or more of a set of models that do not use the one or more variables to historic data relative to the product being forecasted, and confirming there is a change in demand for multiple of the hundreds of product relative to the first shopping facility; and identify one or more additional actions to modify inventory at the first shopping facility relative to each of the multiple of the hundreds of products in response to the forecasted future demand resulting in part from changes in conditions corresponding to the first shopping facility as reflected in the change of status of the selected one or more variables corresponding to each of the one or more of the hundreds of products.

9. The system of claim 1 , wherein the control circuit is further configured to evaluate inventory at multiple other shopping facilities, comprising the one or more other shopping facilities, relative to the on-hand quantity of the first product at the first shopping facility, and in-stock quantities of the first product at the multiple other shopping facilities; and initiate the transfer of the quantity of the first product from the one or more shopping facilities of the multiple other shopping facilities consistent with the forecasted future demand relative to the on-hand quantity of the first product at the first shopping facility and the inventory at the multiple other shopping facilities.

10. The system of claim 1 , wherein the control circuit is further configured to train each of the plurality of different models based on historic sales data and on-hand inventory data obtained over a second historic period of time.

11. A method of forecasting product demand at retail facilities, comprising: by a control circuit: applying, for each of hundreds of different products, each of a plurality of different models to forecast demand of a first product over a first historic period of time to generate a plurality of different historic forecasted demands of the first product at a first shopping facility, wherein at least a first model uses selected one or more variables, of tens of different variables maintained in a variable database of status data corresponding to each of tens of different variables, that are predicted to have an uncharacteristic effect on predicted demand of the first product at the first shopping facility in generating a corresponding first historic forecasted demand of the different historic forecasted demands; and at least a second model does not use the variables maintained in the variable database in generating a corresponding second historic forecasted demand of the different historic forecasted demands; selecting one of the plurality of different models and applying the selected one of the models in generating a forecasted future demand of the first product at the first shopping facility over a fixed future period of time, wherein the selection of the one of the plurality of different models is based on a difference between each of the generated historic forecasted demands and actual sales of the first product over the first historic period of time; identifying at least a first action to modify inventory of the first product at the first shopping facility based on the forecasted future demand, comprising identifying a quantity of the product to be transferred to the first shopping facility based on the forecasted future demand and relative to an on-hand quantity of the product at the first shopping facility, and identifying one or more other shopping facilities from which the quantity of the first product is to be transferred; and carrying out at least the first action comprising initiating a transfer, from the one or more other shopping facilities, of the quantity of the first product to the first shopping facility and reallocating and redistributing the quantity of the first product to the first shopping facility consistent with and satisfying the forecasted future demand of the first product at the first shopping facility.

12. The method of claim 11 , further comprising: determining an error factor for each of the different historic forecasted demands relative to the actual sales of the first product, where a first error factor corresponding to the selected model has a lowest error factor.

13. The method of claim 11 , further comprising: determining an error factor for each of the different historic forecasted demands relative to the actual sales of the first product; and confirming, prior to selecting the one of the plurality of different models, that the first error factor corresponding to the selected one of the plurality of different models is less than an error factor of an additional historic forecasted demand generated by an alternative inventory replenishment application.

14. The method of claim 11 , further comprising: determining an error factor for each of the different historic forecasted demands relative to the actual sales of the first product; applying each of the plurality of different models to forecast a secondary demand of the first product over a second historic period of time that corresponds in duration to the fixed future period of time to generate a plurality of additional different historic forecasted demands of the first product at the first shopping facility; determining an additional error factor for each of the additional different historic forecasted demands relative to additional actual sales of the first product over the second historic period of time; and determining, for at least the selected one of the plurality of different models, a confidence factor based on the corresponding error factor and additional error factor wherein the selection of the one of the plurality of different models comprises confirming the confidence factor corresponding to the selected one of the plurality models has a predefined relationship with a confidence factor threshold.

15. The method of claim 14 , further comprising: adjusting the actual sales as a function of on-hand inventory of the first product at the first shopping facility over at least a portion of the first historic period, wherein the determining the error factor for each of the different historic forecasted demands comprises determining the error factor relative to the adjusted actual sales of the first product.

16. The method of claim 15 , wherein the selecting the one or more variables comprises selecting the one or more variables as a function of a residual between historical sales data of the first product relative to a previously forecasted demand forecasted without consideration of the change in status of the one or more variables.

17. The method of claim 11 , wherein the forecasting further comprises: applying a first set of two or more models comprising the first model, wherein each of the two or more models of the first set of model uses the selected one or more variables; applying a second set of two or more models comprising the second model, wherein each of the two or more models of the second set of models do not use the one or more variables; and comparing forecasted future demand from each model of the first set of models to forecasted future demand determined from each model of the second set of models in confirming an uncharacteristic change in demand.

18. The method of claim 11 , further comprising: in parallel and independent of predicting whether there is an uncharacteristic demand of the first product at the first shopping facility: receiving, for each of the hundreds of products at the first shopping facility, a change in status data corresponding to selected one or more variables, of the tens of different variables, that are predicted to have effects on predicted demand of corresponding ones of the hundreds of products at the first shopping facility; forecasting, independent of the other of the hundreds of products, a forecasted future demand for each of the hundreds of product at the first shopping facility by applying one or more of a set of models using the selected one or more variables to historic data relative to the product being forecasted, applying one or more of a set of models that do not use the one or more variables to historic data relative to the product being forecasted, and confirming there is a change in demand for multiple of the hundreds of product relative to the first shopping facility; and identifying one or more additional actions to modify inventory at the first shopping facility relative to each of the multiple of the hundreds of products in response to the forecasted future demand resulting in part from changes in conditions corresponding to the first shopping facility as reflected in the change of status of the selected one or more variables corresponding to each of the one or more of the hundreds of products.

19. The method of claim 11 , further comprising: evaluating inventory at multiple other shopping facilities, comprising the one or more other shopping facilities, relative to the on-hand quantity of the first product at the first shopping facility, and in-stock quantities of the first product at the multiple other shopping facilities; and wherein the initiating the transfer comprising initiating the transfer of the quantity of the first product from the one or more shopping facilities of the multiple other shopping facilities consistent with the forecasted future demand relative to the on-hand quantity of the first product at the first shopping facility and the inventory at the multiple other shopping facilities.

20. The method of claim 11 , further comprising: training each of the plurality of different models based on historic sales data and on-hand inventory data obtained over a second historic period of time.